Artículo

Mexican volvanic belt: an intraplate transform?

Cebull, S. E.; Shurbet, D. H.

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Cebull, S. E., et al. (1987). Mexican volvanic belt: an intraplate transform?. Geofísica Internacional; Vol. 26 No. 1, 1987. Recuperado de https://repositorio.unam.mx/contenidos/42089

Descripción del recurso

Autor(es)
Cebull, S. E.; Shurbet, D. H.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Mexican volvanic belt: an intraplate transform?
Fecha
2013-04-21
Resumen
Temporal and "geometric" evidence suggests that several regional tectonic events were especially important contributors during the evolution of the Mexican Volcanic Belt (MVB). These include (1) development of a tectonic zone of weakness in the area of the present MVB, followed in Cenozoic time by (2) tectonic activity in the Caribbean region that includes sea-floor spreading in the Cayman Trough, (3) progressive southward cessation of subduction along the west coast of North and Central America, and (4) development of the proto-Gulf, Gulf of California, and basin and-range (extensional) faulting north of the MVB.The zone of weakness fixed the location and orientation of the MVB. Subsequently, in response to cessation of subduction along the coast of North America, extensional tectonics developed to the north of the zone. To the south, where subduction of Chilean-type prevailed, extensional tectonism was inhibited. Thus, the zone of weakness became a belt of tectonic accomodation, perhaps associated with internal extension, between regions of contrasting structural kinematics. In short, it became an (leaky) intraplate transform (in the sense of Davis, 1980) along which the volcanism was both permitted and localized. Paradoxically, this interpretation implies that volcanism along the MVB is more closely allied to the cessation of subduction north of the MVB than to ongoing subduction to the south. It further implies that the MVB is fundamentally unlike the typical volcanic arcs of the Pacific Rim.
Idioma
spa
ISSN
0016-7169

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